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The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial

Dayna F. Easton Orcid Logo, Charlotte C. Gupta Orcid Logo, Grace E. Vincent Orcid Logo, Corneel Vandelanotte Orcid Logo, Mitch J. Duncan Orcid Logo, Philip Tucker Orcid Logo, Lee Di Milia Orcid Logo, Sally A. Ferguson

Ergonomics, Pages: 1 - 15

Swansea University Author: Philip Tucker Orcid Logo

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DOI (Published version): 10.1080/00140139.2024.2430369

Abstract

Breaks involving physical activity may provide on-shift recovery from sleepiness and fatigue during nightshifts, with effects potentially influenced by circadian type. Thirty-three adults (M ± SD age: 24.6 ± 4.8y; 55% female) participated in five laboratory nightshifts (2200–0600h) and were randomis...

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Published in: Ergonomics
ISSN: 0014-0139 1366-5847
Published: Informa UK Limited 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa68267
first_indexed 2024-11-25T14:21:46Z
last_indexed 2025-01-15T20:36:06Z
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spelling 2025-01-15T13:09:16.9562121 v2 68267 2024-11-14 The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial 7d07250cf5f1cbaf8788af9f48cf000a 0000-0002-8105-0901 Philip Tucker Philip Tucker true false 2024-11-14 PSYS Breaks involving physical activity may provide on-shift recovery from sleepiness and fatigue during nightshifts, with effects potentially influenced by circadian type. Thirty-three adults (M ± SD age: 24.6 ± 4.8y; 55% female) participated in five laboratory nightshifts (2200–0600h) and were randomised to sedentary (SIT; n = 14) or ‘breaking-up’ sitting (BREAK; n = 19). Participants completed the Circadian Type Inventory, categorising as rigid (n = 12) or flexible (n = 11); and languid (n = 11) or vigorous (n = 13). BREAK participants walked 3-minutes every 30-minutes at 3.2 km/h; all completed fatigue and sleepiness scales. Linear mixed models showed a 3-way interaction between nightshift (N1–N5), condition (SIT, BREAK), and rigidity-flexibility for fatigue (p<.001) and sleepiness (p<.001). Fatigue and sleepiness were greatest on N1 for SIT-Flexible and BREAK-Rigid, with SIT-Rigid experiencing the greatest levels overall. BREAK-Flexible showed no reduction. No 2-way interactions between nightshift and languidity-vigour were found. Breaking up sitting attenuated fatigue and sleepiness for rigid types only. On-shift recovery needs may differ for circadian types. Journal Article Ergonomics 0 1 15 Informa UK Limited 0014-0139 1366-5847 Shift work; night shift; cognitive performance; fatigue countermeasure; physical activity; individual difference; circadian type 31 12 2024 2024-12-31 10.1080/00140139.2024.2430369 COLLEGE NANME Psychology School COLLEGE CODE PSYS Swansea University Another institution paid the OA fee This work was supported by the Australian Research Council [IA0802]. 2025-01-15T13:09:16.9562121 2024-11-14T09:12:21.8090494 Faculty of Medicine, Health and Life Sciences School of Psychology Dayna F. Easton 0000-0003-4024-4336 1 Charlotte C. Gupta 0000-0003-2436-3327 2 Grace E. Vincent 0000-0002-7036-7823 3 Corneel Vandelanotte 0000-0002-4445-8094 4 Mitch J. Duncan 0000-0002-9166-6195 5 Philip Tucker 0000-0002-8105-0901 6 Lee Di Milia 0000-0001-7681-5589 7 Sally A. Ferguson 8 68267__33282__1fd8a4eb23944d30a850095421cf2ac9.pdf 68267.VOR.pdf 2025-01-10T15:32:47.2342082 Output 3374133 application/pdf Version of Record true © 2024 The Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (CC-BY-NC-ND 4.0). true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
spellingShingle The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
Philip Tucker
title_short The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
title_full The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
title_fullStr The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
title_full_unstemmed The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
title_sort The relationship between circadian type and physical activity as predictors of sleepiness and fatigue during simulated nightshifts: a randomised controlled trial
author_id_str_mv 7d07250cf5f1cbaf8788af9f48cf000a
author_id_fullname_str_mv 7d07250cf5f1cbaf8788af9f48cf000a_***_Philip Tucker
author Philip Tucker
author2 Dayna F. Easton
Charlotte C. Gupta
Grace E. Vincent
Corneel Vandelanotte
Mitch J. Duncan
Philip Tucker
Lee Di Milia
Sally A. Ferguson
format Journal article
container_title Ergonomics
container_volume 0
container_start_page 1
publishDate 2024
institution Swansea University
issn 0014-0139
1366-5847
doi_str_mv 10.1080/00140139.2024.2430369
publisher Informa UK Limited
college_str Faculty of Medicine, Health and Life Sciences
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hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
document_store_str 1
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description Breaks involving physical activity may provide on-shift recovery from sleepiness and fatigue during nightshifts, with effects potentially influenced by circadian type. Thirty-three adults (M ± SD age: 24.6 ± 4.8y; 55% female) participated in five laboratory nightshifts (2200–0600h) and were randomised to sedentary (SIT; n = 14) or ‘breaking-up’ sitting (BREAK; n = 19). Participants completed the Circadian Type Inventory, categorising as rigid (n = 12) or flexible (n = 11); and languid (n = 11) or vigorous (n = 13). BREAK participants walked 3-minutes every 30-minutes at 3.2 km/h; all completed fatigue and sleepiness scales. Linear mixed models showed a 3-way interaction between nightshift (N1–N5), condition (SIT, BREAK), and rigidity-flexibility for fatigue (p<.001) and sleepiness (p<.001). Fatigue and sleepiness were greatest on N1 for SIT-Flexible and BREAK-Rigid, with SIT-Rigid experiencing the greatest levels overall. BREAK-Flexible showed no reduction. No 2-way interactions between nightshift and languidity-vigour were found. Breaking up sitting attenuated fatigue and sleepiness for rigid types only. On-shift recovery needs may differ for circadian types.
published_date 2024-12-31T20:36:06Z
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